摘要
以硝酸稀土为主要成分的化学增脂剂与乙烯利和α-萘乙酸这2种生物增脂剂复合得到化学/生物型复合增脂剂1和增脂剂2,并施用于云南松的增脂实验,均取得了较好的增脂效果,年平均增脂率分别为31.48%和20.20%。松脂中松节油质量分数提高24.6%,松脂流动性增加,品质得到提高。对施用增脂剂的云南松进行生理指标测试,结果表明:施用增脂剂后,松针鲜质量、干质量增加率最高可达34.57%和37.89%;叶绿素、可溶性糖和可溶性蛋白的量也都增加,最大可提高59.94%、25.88%和42.85%。云南松中三大保护酶超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)活性提高,最大可提高178.38%、137.60%和43.22%,三大保护酶有助于提高植物的耐寒性和环境适应能力;施加增脂剂可以降低云南松丙二醛(MDA)含量(最多可降低36.91%),保证植物细胞内环境稳定性,从而促进云南松产脂量增加。
The chemical tapping irritant agent with rare earth as the main component and two biological tapping irritant agents including Ethephon andα-naphthylacetic acid were applied in the experiment of increasing resin of Pinus yunnanensis.The effects of increasing resin were good,and the average increasing resin rates were 31.48%and 20.20%,respectively.The mass fraction of turpentine in resin increased by 24.6%,and the quality of resin improved.The physiological indexes of Pinus yunnanensis treated with tapping irritant agent were tested.The results showed that the maximum value of fresh weight and dry weight increased by 34.57%and 37.89%,respectively.The contents of chlorophyll,soluble sugar and soluble protein also increased,the maximum improvement rates were 59.94%,25.88%and 42.85%,respectively.The activities of superoxide dismutase(SOD),catalase(CAT)and peroxidase(POD)of Pinus yunnanensis increased with the maximum increments of 178.38%,137.60%and 43.22%.These enzymes could help to improve cold tolerance and environmental adaptability of plants,reduce the content of malondialdehyde(MDA),with the maximum decrease rate of 36.91%to ensure the stability of plant cells,and promote resin increasing.
作者
王瑞苓
刘祥义
刘建祥
吴春华
WANG Ruiling;LIU Xiangyi;LIU Jianxiang;WU Chunhua(Key Laboratory of National Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China,Kunming 650224,China;School of Forestry,Southwest Forestry University,Kunming 650224,China;School of Chemical Engineering,Southwest Forestry University,Kunming 650224,China;School of Ecology and Environmental Engineering,Southwest Forestry University,Kunming 650224,China)
出处
《生物质化学工程》
CAS
2021年第2期31-37,共7页
Biomass Chemical Engineering
基金
国家重点研发计划资助项目(2018YFD0600401)。
关键词
云南松
增脂剂
过氧化物酶
超氧化物歧化酶
生理指标
Pinus yunnanensis
tapping irritant agent
peroxidase
superoxide dismutase
physical indexes
